Rubidium (Z = 37) and potassium (Z = 19) are similar to sodium in that they have ____ electron(s) in the outermost shell
a. five p
b. three p
c. two s
d. one d
e. one s
E
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In general, precession results when
A) torque acts on a body with zero angular momentum. B) the direction of torque acting on an object is parallel to the direction of angular momentum of the body. C) there is no torque acting on a body. D) the direction of torque acting on an object has a component perpendicular to the direction of angular momentum of the body. E) the direction of torque acting on an object is opposite to the direction of angular momentum of the body.
A girl is standing in front of a concave mirror. Consider two rays of light, one from her nose and one from her mouth that are parallel as they are traveling toward the mirror. These rays will come together
a. at the focal point. b. at the center of curvature. c. at the image point. d. behind the mirror if she is too close to the mirror.
Which of the following is not the name of a major
lithospheric plate? a) African Plate b) North American Plate c) Japanese Plate d) Indian Plate
When the frequency of the light is increased in a photoelectric effect experiment, the energy of the emitted electrons increases
Indicate whether the statement is true or false